Machine for clearing matrix cavities



` May 3, 1927.

H. R. HocHuL.) MACHINE FOR CLEARING MATRIX CAVITIES 2...... KN Hw 7Sheets-Sheet 1 File-1 Aug, 2o, 1924 @xvi-:molan v ywwfmm y 1927 H. R-.HocHuLl MACHINE FOR CLEARING MATRIX CVITIS mgd 11.20. 1924 'rsheets-'snm s May 3, 19.27,

n. R. HocHuLl MACHINE FOR CLEARING MATRIX cAvITIEs 7 Sheets-Sheet 4Filed Aug. 2o. 1924 INVEN'I'OR- I WML ay 3 1927 H. R. Hoc-Hum MACHINEFOR CLEARING MATRIX` CAVITIES Filed 11.20. 1924 "rsneewsneet 5 III)INVENT R f. BY

l ATTRNEY www , l May 3,1921- H R. HOQHULI .627 093 CHINE 901'( CLEARINGIATRIX CVITIBS Filed Aux. 20. 11.924 7 Sheets-Sheet 6 j@ @M 'fw ATTORNMa 3 1 I y 927 H. R. HocHuLl CHINE FOR CLEARING IATRIX CAVITIES med Aug.zo, '1924 v sheets-shut '7 www ME;

Patented May 3, 1927.

UNITED s'rxrl-:sA

PATENT OFFICE.

MACHINE' FOR LEARING ratiatum):y ofu'rrrinsiV Application med Augusty2o, 1924. vsensi 110.5733311.

- fe'otions Which are frequently formed inv the course ofthe'prodiiction of the matrices.4 In the manufacture of linotypematrices,y 1t 1s customary to first eut transverksefrouting.

notches in the casting' edges of the matrix' blanks and then punchtl'ieformative cavities or charactersin the bottoms of said notches; The sidefaces of the matrices are then shaved to bring them down' to therequired tliickness.V During this, latter operati-on, the

lrelatively thin side Walls ofthe Wider matrix characters are frequentlybentover or curled inwardly at the top so as to obstrnctth'e cavities,-and as alresult, the printing faces of the typeCaSt therefrom are liablet'o be defaced orv destroyed. In the interest oftype perfection, it isdesirable that these obstruction-s be removed, and the custom heretoforehas been to pick the'mout by hand, Withthe aid ori employmentyofsuitable tools; lThis practice, however,` is slovv,` tediousanduusatisfactory, as Well as very expensive, and the present' inventioncontemplates a ma` chine which will accomplish the same resnltsanto-matically,-` thus facilita-ting the operation required for thisWork and reducing the cost in labor to` aminimuin-.f

- In accordance With the present invention as embodied for exam-pie inthe machine illustiated,y the matrices Whose cavities are ob'- structedin themaiiner stated, are presented to'a pickingtool and' tl'ieparts areso mechanically manipulated as to cause the tool to enter the cavitiesand, removethe obstrucl tions. In" thesaid machine, a magazine isprovided in which thematrices to be operated onareL stacked, and thematrices areiremoved one at al time' from the leading:y end of thestackA and delivered bet-.Ween holding' jaws in positionl to be acted'onbyA the pick.- ing tool', and-on Vthe completion of thelpickingoperation, the matrices 'are dislodged from between thejavvs andadvanced past a trimmingknife which acts to'rshave off any bers orprojections producedl the actionv Aof the picking tool, andA then thematrices are further advance"d tothe*l action-of; an

ejvecting ,mechanismE Whlicinejectsl them from y the machine andVstack-S; them img a suitable galley. It Will be understoodthat iii'ftheforegoing ope-rations',v4 the matrices pass through the machine inprocession7 y the matricesin advance being pushed by those followingwtndbeing subjected in succession tothe aCiOIltof the picking tool andtrimjming knife; I In the operation o'f thepicking tool in oneexcurs'ionofl Jthe matrices through thema-l chine,- only theobstructions atone side of thelformative characters are removed, andmorder tocomplete the operation andrem'ov'e also theobstructions at theother side of the' characters, it is necessary to send the matricesthrough the machine4 a second time,

and in' reversed position, tothe end that ,the

obstructions remaining vvillvbe presented inV proper relation to thepicking tool andtrimmin-g knife.'` y 'd j The detailed form andconstruction of the parts `ofthe machine and their operative re# lationsto .bring about the above described re.-

sults7 Will be fully described in the specifi cation to follow, 4 andthenovel features of the invention set forth in the appended In the.acconipanyrngA drawings:

s Fig .l is a plan View of theimproved chine;

rig. e `is a detain Showingffhemeei feed device 5,- y y p 1 V y Figs.l3',` 4 and 5 are side elevations of the ifnachine,E partly in section;showing successive positions of the picking tool during its aotion, and`thecorrespondi'ng `positions of the1correlativo parts; t

:Fighe a vertical longitudinal section through' the too'll support andits operating head, Vand the lnnderlyi'ng portion of the machine onwhich' the matricesA are supported. showingv the matrixr delivery slideadvancedj .Fig, I is an enlarged plan view of a portion of the machine,showing the matrix deliyery slide in' its retracted position;

' Figi `8 isiavsectional viewon an enlarged scale .of aadetail, 'takenon the line 8-8 of Figa., 7:

K Fig. 9" is detailverticalsection.on the line Q-Q of Fig. 7 showing`the matrix` ejectns .de-vice; Y Figi 10. is 4a perspectiveView*showin-ga tirnmingopeiiations; v .Y

Erg. l-lfis an elevation; partly` in section, ofthe ieking tool holder,showingjhe rela?- tiao'n oV 'th'egpickingh toolsifgto` the frmativecharacters of a .Vtvvolletter lnatriir;j

atrixl before and" after,v the picking and 105 Fig. l2V is a plan viewof the tool holder; Fig. 13 is a vertical section through the same onthe line 13-18 of Fig. l2; and

Fig. 14 is a detail,vshowing a modified are to be cleared ofobstructions, (those herein shown except in Fig. 14; being oftheordinary two-letter variety and of uniform thickness throughout) arestacked vertically on edge in a magazine A with their casting edgesexposed'andwith the leading matrix of the stack located at the deliveryyend of the magazine in position to be removed therefrom. A suitable feeddevice is employed to advance the stack sothat the matrices will be fedto the delivery position until the stack has been exhausted. Suchdevice, in the present instance (see Fig. 2), comprises a follower blockA1 slidably mounted in the magazine and acted on by a suspended weightA2,v which tends constantly toV urge the block against the 'stack andfeed the same forward. A spring latch A3 is pivoted totheblock A1 andisarranged to engage the forward edge of the magazine bottom plate andhold the block retracted to permit reloading of the magazine, whendesired. Y

It is intended, as before stated, to remove the matrices from themagazine and deliver them successively toa picking position.l wheretheir cavities will be subjected to the action of the picking tools.`VThe means herein employed for this purpose (see Figs.v4 l,

`6 and 7) comprise an elongated reciprocating slide B, slotted at B1 forthe purpose presentlyr to be described, and suitably guided in aguideway in the'machine base fra-nie D beneath a top guide plate D3, anda linger B2 carried bythe slide and arranged in longitudinal alignmentwiththe leading matrix inthe magazine, said finger Vbeing` adapted,during reciprocation of the slide, to push the matrix endwise to thepicking position, where its two cavities will be properly aligned ywiththe picking tools G later to be described in detail. i Inv order thatsuch position of vthe'matrix may be accurately determined, the finger B2is connected to the slide so as to be capable of longitudinal ad-Vjustment with relation to the slide. In the present instance, thisconnectionV of the f`|n`- ger with the slideis eiiected by a clampingVthe form of a Vspring pressed plunger, is arranged to engage the extremeleft hand endof the slide B (see Figs. l and 6), to take up any lostmotion between the moving parts. Reciprocation is imparted to the slideBlfroin a peripherally grooved rotary Y cani Btxed to one end of aconstantly operated drive shaft C journalled in Vsuitable bearings atopposite ends of the base frame D. A pivoted lever B5, carrying at oneend a roller B traveling' in the cam groove, is pivoted at its other end-to the matrix ldelivery slide B and constitutes the connecting elementbetween said parts. Power is conimunicated to the shaft C through anordiV nary spring'clutch C1 and a pair of variable speed Vdrive pulleysC2 arranged near the opposite end ofthe shaft, and a hand lever C3,pivoted to a bracket C4 and carrying a thumb latch C5, serves to controlthe clutch and lock itout of-action, as desired.

A pair of clamping jaws E, Elis einployed for holding the matricessecurely in .the picking position,'wl1ile they are subjected to theaction of theY picking tools. The jaw -El is stationary, being fasteneddown upon the base frame D and formed` with an extension E2, arrangedacross the, delivery end of the magazine A.v A stopis thus provided,against whichl -the matrix stack is fed, and a `continuous, unbroken surfacey presented to the matrices as they are advanced to the pickingposition. "The complementary jaw` E,.however, is slidably mounted inthebase frame and heldin place by a cover plate D2, a helical spring E3,arranged between theV jaw and a ixcd bracket E4, serving to hold theformer underthe desired tension.V In starting the Operation of themachine, or when matrices thicker than those of the preceding selectionare to be sentthrough the machine, the jaw'E is I manually vretractedVfar enough to permit-thc insertion of a matrix ofthe selectedthicknessbetween the jaws. A hand lever E5 is provided for theY purpose,whicli'is pivoted at its lowerend to the bracket Fr? and connected tothe jawV through V the medium of a rod E (see Fig. The purpose of f lthis precaution' maybe readily understood, since, if thejaw were notretracted as de scribed, a matrix during its4 advance from the Vdeliveryposition, instead'of dislodging the matrix betweenthe jaws and pushingit ahead, as intended, would be stopped by contact with the jaw. Y 1

A matrix retaining plate F isfsecured to the top guide plate D3 beforealluded to izo and is Vformed with projecting fingers F1,

arranged to engagey over the ears of the inatrices when in pickingposition and to hold them against vertical displacement rduring thepicking operation.

The picking'tools, theirV mounting, and

inode of operation will Vnow be described,

end such as that shown in Eig- 14, to coop erate with the larger or headletter matrices. VThese matrices usually have but a single character intheir casting edges and one tooly of the special` form` should belemployed, instead' of a, pair. rlhe holderG1 is provided with a spindleG2, .projecting latenalily therefrom, and which is rotatably mounted ina reciprocating head Hz'suitably guided in a. guideway ai' standard H1rising from the base frame' D; A tool supl porting member G3 is? fixedto the upper end of thexholderand extends therefrom in a directionopposite to the spindle G2 and is formed with amachined shank G4.

In' ordergto secure desired lexibilityin handling two-letter matrices ofvarious sizes, 'provision has been made for adjusting the toolsbodily toand from eachother. To this end,` one tool is anchored to the supportingmember Gag, whilethe other is' supporti ed inan auxiliary carrier G5,which is adjust-ably mounted'on the; shank portion A1 knurled, nutG6;mounted against axial movement, on the shank G, is adapted,

through its engagement with the threaded portion ot the. carrier G5, to'move thev latter longitudinally on the shank and? thereby effect thedesired adjustment of the tool. A set screw G7 is `mounteqil' intheVcarrier and: binds against thev shank G44 and thus serves tohold thevformer in: its adjusted plo,n sition onf the shank., v

Means arevv also provided; for individual adjustment of the tools towardand from the matrix cavities- Accordinglyg` thetools are respectivelysecured bysuitable clamps G9V in tliefformoil angleble'ocks, one ofwhich is `supported directly `upon the supporting member G3 and theother bythe auxiliary carrier G5. Set screws'y G10' and clamping screwsG11 are carried by the angleblocks and are: engaged respectively; withthe suppartingV member and; auxiliary carrier and serve to4 maintain theclamped thereto in their adj usted positions, andi clamping screwsextend; `through blocks andv are screwed into the blocks, and, serve toclamp the tools to the blocker, A. yielding' clamp block G1? (sees Fig.13) isi-f formed with a stem G13 fslidablv mounted; in., an: extensionG1* projecting" laterally from the lower end admit of Vthe adjustmentblocks the tools of the supporting member G3. This vblock is`providedxwith two apertures g, g arranged to receive the respectiveAtools, and when shifted to the right (Fig. 13), the rear walls of the:apertures will engagel the j tools and will bind thelatter against thecX- tension, the aperture g being elongated to of` the associated tool:to and from the other tool: by the nut G, as. .before described; Aspring G15 surrounds the stem G13 and bears between the outer face ofthe extension and a nut'G1 on' the stem and acts to hold the tools inyielding engagement with the extension.'4

The `tools are thus held normally disposed in` the 4prop-erk positionyto perform their 'functioY at the same time however, the

arrangement permits a relative rocking movement between the 'tools andholder about the axis or"i the member Grthe reasons forwhich willhereinafter be pointed ont, l i

In order that the: picking operation be properly e'ected, it ispreferable, according tothe present' invention, that the tools enter thematrix cavities in one direction and leave themf in* another directionin breakingaway and removing the. obstruction in the cavity.

Means areftherefore provided for imparting a compound -motion to thetools. To this end, the headfH, wherein as. before men. tioned the. toolholder is journalled, lis* slidably5r mounted in the standard H1 asbefore explained, and. lproperly guided by the keeper plates H13. H2;A-lever H3 between its ends to the standard H1, and at its forward endto the upper end ofhead H, andtextendfs rearwardly and carries at itsverwend; al rollen H7*- traveling in the groove of' thef facef cam `HThis cam is keyed to is pivoted 1' los the drivershaft andthe form ofits groove is such thatas the cam is rotated, aY vertical reciprocatingmovementwill be imparted to the tool holder, whereby the tools will becaused touenter the matrixcavities acertain distance atithe limit; ofeach down stroke of the head, such distance being; of course determinedfby the-` individual vertical ,adjustment: o-fthetools. The-holder G1 isrocked about the axis. of:V its spindle G2' so as to` swingr thetools,lafter they enter the matrix cavities,` into Contact with theobstructionsand out through the side walls, whereby the obstruction will be brokenaway' and removed. To effect this action, the holder is clam edtof a:sleeved? (see Fig. 6) by a bolt'. .l1-w rich; entersgthe sleeve from itsopposite end andhasfa threadedengagement withl the holder spindle G2'.The sleeve J is keyed tol a tube J 2, rotatably mounted in the head1 andAprovided at one end with a crank arm J1 and at its opposite: end with anut Jft, the, latterserevingi to clamp the tube to thefhead; bushing HQ.y The: arm J3' is pivoteliy connected y to one end,V et an `mounted onan eccentric J"r on the drive shaft C and Yacting to impartthe desiredrocking motion to the .tool holderA trans- 5? cavity,

versely of the movements of the head II.

In order to prevent injury to the forniative characters in the lateralmovement of.

the tools due to the rocking of theA tool c holder, as justdescribed,the upper faceof the stationary clamping jawE1 (see Fig. 5) is disposedslightly above the bottomof the formative cavity, and` yet sufficientlybelow thebottom of the routing notches to permit the removal of the.`obstructing portions of theside walls by the lateral movement of thetools. In'other words the jaw E isarranged free of, so as :to expose,the upper portion of the side lwallvof the formative while bearingagainst and reinforcing the lower portion of said wall, so that the toolcan break away the local obstruction in the cavity without vdanger oftearing away the entire wall and thereby mar the type face. Because ofthis condition, unless suitable provision werefmade, breakage of thetools, or damage to the operating parts would result during the lateralmovement of the tools shouldthey happen to be seta little too low, orshould the side walls of the cavities be abnormally thick. This danger,however',V is obviated by the pivotal mounting of the tool supportingmember` G3, which, together withV the clamp block G12, permits the toolsto yield laterally with re lation to the holder against the tension ofthe spring G15.

In order to admit of the adjustment of the'p-icking tools lengthwise ofthe matrices, Vso that when the matrices are sentthrough the machine inreversed position, as before mentioned, the tools may be caused tooccupy the proper position relative to the matrix cavities, fthe toolholder is mounted for horizontal adjustment in the head I-I'independently of and relatively to the rocking means for the toolholder;r As shown in Fig. 6,v the sleeve J although keyedl to thesurrounding tube J2 as before described, is

" capable of a limited movement lengthwise thereof, and an adjustingnutJ8 is screwed on the threaded end of the sleeve J and is held againstaxial movement bythe collar y', e but is free to turn on the sleeve. VByscrewing up the nut or unscrewing the same, the sleeve will be fedendwise vwithin the tubeV and relatively to and independent of the armJ3 by which the tube is rocked Burs, protruding from the side faces ofthe matrices, are frequently produced by the action-of the pickingtools, and should be removed in order to insureperfect alignment of thematrices when-,in use. A trimming knife II is therefore provided, whichis counter-sunk in an extensionv of the stationa'ry inactivejaw E1 andis bolted into position, with its cutting edge iush with the innerfaceof said jaw. In order to facilitate the trimming action, a yielding*block K1 is'arranged opposite the trimming knife a'nd serves to pressthe matrix against the knife as the matrix is pushed by .a succeedingmatrix from its position between the clamping jaws E, E1. This block isslidably mounted 'n the base frame D and recessed tol receive a s rino'K2 which is held under the desired tension by a regulating stud K3adjustably fastened to the cover plate D2 (Fig. 8) The block Klis thusyieldable or retractable independently off 'the movable jaw.- yIt isimportant, however, that the block be controlled as toits normalposition by the position of the jaw, inorder that when the jaw is settoaccommodate a matrix of a given thickness,` the block will be maintainedin the proper position relatively to 'clampingjaw E. This is ofimportance inV 'f the knifetoenable the matrix to'be ad- Vvaiicedbetween them and be properly op; erated on by the knife.. This iseffected by providing the jaw with a lug E projecting from the endvthereof adjacent the block,

' which lug seats in an open-notch c formed in the yadjacent end oftheblock, the arrangement being such that when the jaw is retractedmanually as before described by the lever E? to give the j aw itsinitial' 4set for the .particular thickness of matrix to be op'- eratedon, the lug ETJwill. engage and retract the block to the same extent;yet byV reason of the open character of the notch,the block is capableof arearward movement when cammed back by burs which the knife fails toremove, independently of and without disturbingvthelaction of the jaw inexertingVv itsV clamping action on the following matrix. Afterthe'matrices'I-have had their cavi` vties cleared of obstructions atoneside and the burs removed from the side face, they are 'advanced anotherstep yto the ejecting position, from'which point they are pushedlaterally or face-wise from the path of the succeeding matrices andstacked in a channel D4, a suitable galley M beingV arranged incommunication` therewith to receive vthe matrices from the chanel..VA'matrix ejecting ineclianismis provided'for this purpose an will nowbe described (see Figs; 7 and9). This mechanism comprises a cylindricaleinen guifieain aletas@ frame n and a fiat .j

stem L1 extendingy forwardly from theslide and 'provided on itsextremity with a nose `the sequence in which the matricesllare .tweenthe jaws and Va'dvanced'to :the trim- `'ming `lrnit'e K. The Vhead H.immediately descends under control of the `facecamlrl5 toV `the limitof its doivn-strole, and thel picking .matrices will `be pushed sidewisein suceesf ysion into the channel Dt. The-nose piece L2 is adapted Whenthe e]ector 1s in a v retracted position, to seat in arecess N1., formed1n a guide plateN, sowas to be ont of the way otja. matrix as Ait isadvanced from the trim- 'ming -lnives `Reciprocating motion is y.imparted to the ejector lfrom thegdrive shaft C 'and 'face cam H5,before mentioned, -a bell crank lever L3 being pivoted .t0 the basetraine and having .one arm .engaged with the cylindrical slide L vandvits other arm pivoted to .one end of a flink `Ltvvhose opposite end isjournalled onfthe `aule ofthe roller Htbe'fore lalluded to as trackingin the groove .of Atace cam Hf', V(see 'Figi 5,).

In order to prevent a matrix from being overthrown beyond `the Aejectingposition, a

stop O is provided,'which is fastened to kthe lett side Wall of thechannel 134, and Yserves to guide the matrix thereto asit is ejected. Asshown in Figs. V7 and 9, this step is ,ref-

lerablyv of a yielding nature,'s0.astoeliminate 'lie possibility ofdamage to the parts,which -`-inight otherwise result from Chipsor-,Smilar obstructions Vlodging lbetween lthe` `matrices or in thepaththereof.

The general .operation `oft the Vparts `and handled will now be clear.kAssuming'the parts to'be in the Yposition, shown in Fig. 7, with ainatrixbetween .the clampingjagivs VE and E1 and the head `H raised, `asyshown in Fig'. 3, will be -notedthat the leading matrix of thosestacked in the'n11gazine is directly ybehind the ione between the jawsand the delivery slide'lingerB2 .ilrlongitudinal alignment with both.Hence, -as the slide is shifted to the dotted ,line position (Fig. 7.),amatrix will be removed fromthe magazine andrpresented between rthematrix jaws, with 'itstwo cavities exposedto the picking tools G; at thesame time, thenext matrix in advance Will' be dislodged from beoperationis ,etl'ectedin the manner before described; i. ie., `byafpartialrotittion of the tool holder'Grl and the `consequent ,swingingVot the tools through the side ,Walls of the matrix cavities, therebybreaking away `and renjioving` the obstructions.` As therdelivery linger:B2 11s Withdrawnltoits retracted posi- `tion, another matrix will `befed to the delivery position a-nd,,as ,it is presented bebe pushedrespectively to the trimming .knife .and the ejecting position.` Thus,through the reciprocating action of the delivery slide, the matricesareremoved from the magazine and advanced successively, step by step,along the inner face` of the stationary jaw El, iirst to the pickingpositiom Where they are subjected 4to the action of 'the picking tools,ythen to the trimming knife which removes the burs from their side faces,and ,finally to the rejecting position, `Where they are stackedtorremoval, theoperati'on of the parts'being such-that they ejector willstackA a matrix in the channelw-D4 and recede vbefore the succeedingmatrix is advanced -Vto the rejecting .position l Y AS before stated, in`carrying out the present invention, vthe matrices, after having AbeenySent through .theinachine, are reversed ,end `for .end-land sentthrouehagain, 'so-that the opposite side ;b e locatedlin position toundergo the action ofthe picking tools, it being understood vthat theobstructions are .formed in both sideV Walls of .the matrix cavitiesA hto one. The mach-ine parte are ytherefore constructed so that thematrices .-ivillbepropverly handled in such reversed position, ,the

`.onlyprecaution ,necessary to observe before iintoV properalignmentwith the .cavities of .a reversed matrix, In .other words,V the`matrix cavities (see Vlig. l0) are not .arranged symmetrically l.orequi-distant` from the opposite ends of the mfitces, and conlAsequently,when the `matrices are sent through the machine the second time, theircavities Will not occupythe same vertical planes as on their :previousexcursion so that the'tool holder inustbe adjusted accordingly. lt, forreasons betere mentioned, the 4burs produced by the ,picking tools arenot re- .moved, when `the v.matrices are yiirst .sent

Walls ..of `their .cavities ivil'l i and not confined 20 through themachine, they would interfere with the functions of the' clamping jaw 'Eand. slide .block K1, When sent Ytlfirough the second time ,and Wouldprevent la matrix :from beinggr'properly sustained in the pickf inglpositions and in roper.relation "to ythe triinining knife. The y,jaw Eandy bloei; KI

vare .therefore `formed with longitudinal, re-

rcasses :E8 and `K8 'respectively in their clampingrfaces-.to ,providethe necessary clearance space for the burs. l y

In the accompanying drawings, the inavrchine has' been shown only in,preferred form and by Way-of example, andl obviously many modificationsand changes ltherein Will Lreadily snggestthemselves to those skilledyinthe artwithout departure from1 the scope of the p i f invention.Thus, livhile the picking tools tween the jaws, the tivo .matrlces aheadWill have` 'herein been illustrated as operating automatically, theymight just as Well be mounted in a stationary holder, and the matrixsupport betherelative 'moving element instead of the tools, so long asthe latter are causedto enter lthe formative matrix cavities for thepurpose set forth. Also, a single tool, with a pair of picking end poi'-tions, might be employed advantageously, particularly if one of saidportions Were made adjustable with relation to the other.

Y Iii short, it is to be understood that thek invention is not to belimited to any specific `forin or embodiment, except in sovfar as suolithe matrix cavity vin one'direction and re,-

inove the obstruction bymovement in a dif-V ferent direction.

2. In a machine of the class described,the combination of a matrixsupport adapted to sustain a matrix with its cavity exposed, a pickingtool' sustained relatively to tlie'support to act in the matrix cavityto remove obstructions therefrom, and means operatively connected Withthe picking tool and operable to cause the tool to yenter the matrixcavity in one direction and leave the same in a different direction inremoving `the obstructioiis therefrom. v

3. In a machine of the class described, the combination of a matrixsupport adapted to sustain a matrix with its cavity exposed, a pickingtool sustained relatively to the support to act in the matrix cavity toremove obstructions therefrom, and means operaltively connected withsaid tool to impartV thereto .reciprocating and oscillating motionsrespectively iii different relative directions duringeach cycle ofoperation of the tool.

4. In a machine of the class described, ,the combination of means forsupporting a inati-ix with its cavity exposed, a picking tool adapted tooperate in said cavity to remove obstructions therefrom, a `holder forsaid tool, a lieadin vvhichthe tool holder is pivotally mounted, meansfor reciprocating the head, and means for rocking the holder about itspivotal axis in the head.

In a machine of the class described, the combination of a pair of matrixclamping jaws vadapted to sustain a matrix with its cavity'exposed, amatrix picking tool sustained relatively to said jaws to act in thecavity to remove obstructions therefrom, means operativelyconnected'Wit-h said tool to cause it to perform its function, and meansoperating in coordination With said tool for delivering matricessuccessively between the clamping jaws. v f l Y 6. f In a machine of theclassdescribed, the combination of a matrix support, a picking tool forremoving obstruction from the matrix cavities, a holder 4for the pickingtool, a reciprocating head, a tube journalled there;- iii andlsupporting the tool holder, and vmeans for imparting a compound motionto said tool, such means comprising aY drive shaft,

a face'cam'mounted thereon, a lever oper-V ated bysaid cain'andconnected to the head, Y i

an eccentric mounted on the'driv'e shaft, and; a linkV journalled vonthe eccentric and op-` eratively connected to the said tube. ,Y '7. In amachine of the 'class described, the

combination of a matrix supportadapted to sustain amatrix with itscavityexposed, a

picking toolsustaiiied relatively to the support to act in theinatrixcavity to remove obstructions therefrom, means operatively connectedwith the tool for causing it to pei form its fui'ictionin removing-saidobstructions, and means for adjusting the tool relatively to itsoperating ymeans for proper cooperation With matrices of differentsizes.

8. VIn a machine of the class described, the

Vcombination of ay matrix support, a Vpicking tool for removingobstructions from the.V

cavitiesl of the matrices sustained bywsaid support, afholder for'tliepicking toola reciprocating head in which the holder is rockablymounted, a rotary driving means,l

operative connections between the driving means and head to reciprocatethe latter, and

operative connections between the driving means and tool holder to rockthe latter on the head, said connections being coordinated with eachother to impart to the picking tool a compoundY movementy to removeobstruction from the matrix cavities.

9.. In a machine of the class described, the

combination of a picking tool, a holder therefor, a head in Vwhich theholder is mounted, means for operating the head, and means for adjustingthe holder 'relatively to thehead so as tolocate the pickingtool in vthedesired operative plane. v

. l0. In a machine of the class described, the combination of a toolholder, a Vpair of ma* trixV pickingY tools .carriedV by the holder,means for supporting the holder to cause the picking tools to enter Vthematrix cavities and remove obstructions therefrom, and means Vforeffecting relative adjustment of the tools in the holder to and fromeach other.

k11. In a machine of the class described, the combination of a matrixsupport adapted to Vsustain a matrixrvvith its cavity exposed, a toolholder, a vmatrix picking tool carried by the holder and adjustablerelatively there to to and from the support, and meansoperativelyconnected with the tool holder for operating the same.V

images 12. Ina machine of theclass described, the combinati-on 'of meansfor supporting matrices with the-formative cavities exposed, a toolholder, apicking tool carried by the holder, and means for operating/theholder to cause the tool 'to lperform itslpickingoperations in removingobstructions from the matrix cavities, said tool being yieldablevrelatively to the holder `in the Idirection of its picking action. Y "l13. In a machine of'lthe class described, the combination oi va matrixsupport, a`tool holder, operating means therefor, a picking tool carried'by the holder, and a spring to permit yielding of the 'toolundercertain aoncrmal conditions, `l`as described; 7 f

In a mafcliinefofthe class described, the combination of a `tool holder,a pair `oit matrix picking tools carried by the holder, and means v:toradjusting one'o said tools bodily withrelation to the other.

15. In a machine of the class described, the combination of a "toolholder, a tool supporting ,member journalled iny said holder, a matrixpicking tool mounted in the supporting meinbei",'and ayieldingfolampblock ier holding Vthe tool properly in its normaloperative position.l j

i6. In ainachine'of 'thev class described, the combination of amatrixsupport, a 'tool holder, aftool supporting member -journalled insaid holder, a pair 'of pickingtools, one of which is carriedbysaidmember, land-an auxiliary tool carrier sustaining theother tool and`adjust-able longitudinally lof said `memberso as 'to change the bodilyArelation of the tools, .as desired.

17'. In a machine 'of the classdescribed, the `combination of a'matrixsuppora a tool holder, operating means therefor, atool'supporting member journalled 'in the holder,

`a picking tool mounted insaid supporting uember, an auxiliary toolcarrier slidably mounted on said `-membeiya second picking tool mountedon sai-d carrier, means for adjusting the carrier longitudinally thesup'- `porting member, and a yielding clamp block for holding the toolsldisposed in their nor- 18. Inv a machine of 'the vclassdesc-ribed,

`the combination of a matrix supportadapt- 'ed to sustain a matrix with"its cavity exposed, a picking tool sustained relatively `t0 the supportto enter 'the inatr-ix cavity 'to remove obstructions' therefrom,operating means acting on said tool to'cause "it, toauto-v matically`perform Vits u-nct-ion, a' Imatrix magazine `for the matrices "to I'beoperated ou, and a reciprocating slide' for delivering the matricessuccessively from the magazine to the' matrix support; p

19. In a ymachine ofthe class described, the combination of a matrixsupport, an automatic picking tool for `removing obstructions from thematrix cavities, ai niatrixma'gazine, a stationary matrix Aelampimg; jawhaving `an extension .arranged across the delivery endof Ythe magazine,`a complementary spring actuated clamping jaw for holding a matrixl upagainst the ystationary jaw duringzthe .picking operation,y means forfeeding the matrices againstv the extensionV of the stationary jaw, and`means for deliv @ring the matrice-s successively from the magazine`t'o."picking"7 position between the t-woj'aWs.

' 20. In amachine of the class described, the combination of anautomatic `matrix `picking tool, a pair of jaws for holding the matrixduring 'the .picking operation,` a f` jaw vfor holding a matrix up.against the stationary jaw `during the picking operation, a 'trimmingknife, means for delivering the matrices V:trom between .said'jawsacross the edge ofsaidknife, and a yielding block for pressing' a matrixagainst the knife.

i 22. In a machine `ofthe 4class described, the combination of amagazine i'or the storl lage of kIinitrices tobe acted on, `a channellto receive the matrices-from the magazine, deliveryslidemovablelengthwise of said channel,fmeans forl advancing Saidslideto effect the'delivery of the matrices from the magazine into thechannel, and a .spring actingconstantly on said slide in Yojiipositionto'itsadvancingmovement.` y

'I'n- 'a' machineof the class described, the combination oi' a fixedmatrix clamping jaw, a cooperating retractable jaw, means for presentingmatrices in succession between the jaws and forfadvancing the samebeyond the jaws, a picking tool operative on `the matrices held by thejaws to remove Vobstructions fro1n"tlie matrix. cavities, atrimmingknife in positionto act on the man rices after leaving `thejaws, a retractable block supported Vin position opposite the thematrices up to the action of the knife,

means Vfor retracting the retractable jaw to accommodate 'thickerfniatrices, and means l whereby the retraction oi said jaw will cor.-respondingly retract the block.

jaws, a `picking tool operative Von the matjrices 'held by the clampingjaws to remove,

itil) fknife andoooperat-ive therewith 'in holding on, means fordelivering the matrices successively from the magazine to the clampingjaws, and an ejector .adapted to engage the matrices after they areacted on by the picking toolV and operable to stack said matrices.

26In a machine of the class described, the combination of a matrixmagazine, a

-pair of matrix clamping jaws, a trimming knife, an ejector,'means fordelivering the matrices successively to the clamping jaws, trimmingknife and ejector, and a picking tool operating in coordination with thedelivering means for automatically removing obstructions from the matrixcavitiesy as they are presented between the aws.

27. In a machine of theclass described, the combination of an automaticmatrix picking tool, amatrix magazine, ,a pair of jaws between which amatrix is clamped the picking position, a reciprocating slide fordelivering a matrix from themagazine between the jaws, a finger carriedby the slide to directly engage the matrices, and means for adjustingthe finger relatively to the slide in the direction of movement thereof;whereby the matrices may be properly presented in operative relationtothe picking tool.

28. In a machine of the class described, the combination of an automaticmatrix picking tool, a pair of matrix clamping, jaws for holding amatrix in the picking position, a magazine in which the matrices arestacked, a trimming knife, an ejector for automatically stacking thematrices after they aretrimmed, a reciprocating slide for removing thematrices'from the magazine .and delivering them successively Vto 'the,55 .picking position, the'trimming knifev and the ejector, and acushioning device for said slideV to function in the manner described. v

29. In a machine of the class described, the combination of Vmatrixsupporting means, means for delivering matrices in succession .endwiseto said supporting means with the matrix cavities exposed andforadvancing the matrices in succession beyond the .supporting means, apicking 4tool for removing obstructions from the matrix caviotallymounted, ajmatrix magazine wherein Vthe matrices are stacked,` areciprocatingV slide forremoving the matrices from the magazine andpresenting them successively to the picking tool, a trimming knife, an

ejector, andimeans whereby said head, picking'tool, slide .and ejectorare operated in coordination with each other tohandle the matrices insuch sequencev that their cavities will be first clearedV ofobstructions, their side` facesfreed of Vbvurs produced by the pickingtool, and the matrices finally ejected and stacked. Y v

31. In a machiner ofthe class'described, the combination of a matrixsupport'adapted to sustain a matrix with its cavity exposed, a pickingtool. adapted to act in the matrix cavity to remove lobstructionstherefrom, and means for imparting a relative movement betweensaidsupport .and the tool and operatively'connected to lone of saidparta-said means beingoperable to cause the .tool to. enter the cavityatthe side of the obstruction and to breakthrough the side wall of thecavity Vand thereby remove the obstruction. v v

32. In a machine-of thel class described, the combination of va matrixsupport adapted to sustain a matrix with its cavity exposed, a pickingtool adapted to act in the matrix cavity to remove lobstructionstherefrom, means operatively connected with the tool and operable tomove said tool into the matrix cavity at the side' of theobstruction andthen laterally through the side wall of the cavity to break awaythefobstruction.

33.111 amachine of the class described, the combination of a matrixsupport adapted to sustain a matrix wit-h-l its cavity exposed,` a toolrholder, .a picking tool held fix- Y edly in theholder and adapted to actin the matrix cavityto remove obstructions therefrom, and meansV forimparting a relative movement between said support .and the tool holder,said means being operable to' cause the tool to enter the cavity atthe-side ofl the obstruction andrthen to break through the sidewall ofthe cavity and thereby remove the'obstruction. i Y Y Y 34. In a machinefor removing obstructionsvfromthe formative cavities of matrices, Vthecombination of' matrix clamping jaws adapted to hold a ,matrix with itsformative cavity exposed one of fsaidjaws extending above the bottom ofthe cavity so as to reinforce the lower portionof the cavity Wall, andterminating below the upper end of the Wall so as to expose theobstruction for removal, a'picking tool adapted to act in the cavity onthe exposed obstruction to remove the same, and meansfor impart-ing arelative movement between said jaws and the tool and operativelyconnected to one of said parts, said means be- 10 ing operable to causethe tool to enter the cavity at vthe side of the obstruction and to acton the obstruction above the jaw and thereby remove the same.

In testimony whereof, I have aiiixed my 15 signature hereto.

L HENRY n. HOCHULI.

